Large numbers of foreign fighters and sympathisers are abandoning Islamic Stateand trying to enter Turkey, with at least two British nationals and a US citizen joining an exodus that is depleting the ranks of the terror group.

Stefan Aristidou, from Enfield in north London, his British wife and Kary Paul Kleman, from Florida, last week surrendered to Turkish border police after more than two years in areas controlled by Isis, sources have confirmed to the Guardian.

Large numbers of foreign fighters and sympathisers are abandoning Islamic Stateand trying to enter Turkey, with at least two British nationals and a US citizen joining an exodus that is depleting the ranks of the terror group.

Stefan Aristidou, from Enfield in north London, his British wife and Kary Paul Kleman, from Florida, last week surrendered to Turkish border police after more than two years in areas controlled by Isis, sources have confirmed to the Guardian.